Related by context. Frequent words. (Click for all words.) 67 X ray machines 64 X ray 61 x ray 61 metal detector 56 scanner 56 scanners 55 metal detectors 50 X rayed 48 CT scanner 48 ultrasound 47 baggage screening 47 detector 47 endoscope 46 luggage 45 X rays 45 x rays 44 body scanners 44 CT scan 44 CAT scan 44 microscopes 44 detectors 43 checked baggage 43 screeners 42 suitcase 42 checkpoint 41 Scanners 41 briefcase 41 checked luggage 41 MRI 40 screener 40 digital mammography 40 scanned 40 scan 39 explosives 39 CT scans 39 suitcases 39 scanning 39 imager 39 TSA 39 surgical instruments 39 mammography 39 scans 39 mammogram 38 radiologist 38 endoscopy 38 microscope 38 magnetic resonance 38 conveyor belt 38 gurney 38 cameras 38 bomb sniffing dogs 37 airport 37 imaging 37 bomb sniffing dog 37 camera 37 ground penetrating radar 37 oxygen tanks 37 flashlight 37 conveyor belts 37 cargo containers 37 frisked 36 maternity ward 36 MRI scan 36 angiogram 36 Ultrasound 36 fingerprint 36 screening 36 sniffer dogs 36 detonator 36 inspection 36 magnetic resonance imaging 36 bolt cutters 36 ultrasounds 36 chest X ray 36 surveillance cameras 36 bag 36 angiography 36 baggage 36 sniffer dog 35 magnifying glass 35 bags 35 explosive device 35 mammograms 35 oxygen mask 35 rectum 35 wand 35 checkpoints 35 backpack 35 International Airport 35 sniffing dog 35 diagnostic 34 MRIs 34 mass spectrometer 34 tripod 34 duffel bag 34 tweezers 34 sonogram 34 canister 34 stethoscope 34 pat downs 34 thumbprint